
- She's the RIGHTFUL heir.
- Why?
Game of Thrones Season 5, Episode 6

If that's true, Stannis is the RIGHTFUL king.
Game of Thrones Season 2, Episode 1

Son of Hoster Tully
and the RIGHTFUL Lord of Riverrun.
Game of Thrones Season 6, Episode 8

I am the RIGHTFUL king.
Game of Thrones Season 4, Episode 2

but he was the RIGHTFUL heir
to the Seven Kingdoms.
Game of Thrones Season 1, Episode 7